Bloomsbury USA is a general interest publisher of adult and children's books. Established in 1998 as an American subsidiary of Bloomsbury Publishing PLC (British publisher of, among others, J.K. Rowling) they are the publisher of the bestselling books The Finkler Question, Logicomix, Pearl of China, Jonathan Strange and Mr. Norrell, Rats, Schott's Original Miscellany, My Horizontal Life, and Kitchen Confidential ; as well as works by award-winning writers Howard Jacobson, Anchee Min, Rowan Jacobson, Alan Hollinghurst, William Boyd, Melissa Fay Greene, Robert Sullivan, and David Leavitt.

In 2005 Bloomsbury acquired the adult and children's divisions of Walker and Company, publishers of the bestselling books The Good Book, Longitude, Brunelleschi's Dome, and Salt; as well as works by award-winning writers Dava Sobel, Ross King, Mark Kurlansky, Tom Standage, and A.C.Graying.

And in the winter of 2008, Bloomsbury launched Bloomsbury Press, an imprint focusing on serious nonfiction under the editorship of Peter Ginna. The Press has produced such bestselling books as The Great Warming, America Aflame, The Art Instinct, The Merchants of Doubt, and The Secret Sentry; as well as works by award-winning writers Brian Fagan, John Ferlling, Victor Davis Hansen, Denis Dutton, and Maury Klein.

BloomsburyKids was launched in 2010 and the division includes such bestsellers as Need and Captivate, both by Carrie Jones, Freckleface Strawberry and the Dodgeball Bully by Julianne Moore, Rules of Attraction by Simone Elkeles, and Princess Academy by Shannon Hale; other acclaimed authors include David McLimans, Margaret Atwood, Dale Peck, Celia Rees and Sloane Tanen.